Table 2 Clinical characteristics

Constitutional symptoms

Fever

19

3 (16%)

Weight loss

19

5 (26%)

Night sweats

19

2 (11%)

Fatigue

19

4 (21%)

Rheumatologic symptoms

Inflammatory arthritis

Raynaud’s phenomenon

19

19

6 (32%)

9 (47%)

Muscle weakness

19

13 (68%)

Dysphagia

19

5 (26%)

Skin rash

19

19 (100%)

Inflammatory eye disease

19

0 (0%)

Nerve involvement

19

2 (11%)

Pulmonary involvement

19

7 (37%)

Mechanic hands

19

1 (5%)

GI involvement

19

1 (5%)

Renal involvement

19

0 (0%)

Cardiac involvement

19

0 (0%)

Arthralgia (not inflammatory arthritis)

19

1 (5%)

Manual muscle strength

Upper extremity

19

 0

0 (0%)

 1

0 (0%)

 2

0 (0%)

 3

1 (5%)

 4

4 (21%)

 5

14 (74%)

Lower extremity

19

 0

0 (0%)

 1

0 (0%)

 2

0 (0%)

 3

1 (5%)

 4

5 (26%)

 5

13 (68%)